Bile acids are substances produced by the liver from cholesterol and stored in the gallbladder. They play a crucial role in the digestion and absorption of fats in the small intestine. When we eat, bile acids are released into the intestine to help break down dietary fats into smaller molecules, making them easier for the body to absorb. In addition to aiding digestion, bile acids also help regulate cholesterol levels in the body. They can be reabsorbed in the intestine and returned to the liver, where they can be reused. This recycling process is essential for maintaining a healthy balance of cholesterol and bile acids in the body.